iOS Musician Apps (144) Supported Technologies is Audiobus, Instrument Type is Synth

miRack is a Eurorack-style modular synthesizer. It aims to provide user experience and audio quality close to those of the real Eurorack hardware.

DRUMLAB brings a new approach to the Drum Machine by allowing you to play with both Samples & Synthesis drum sounds.

Cubasis 2 is a fully featured iOS-based music production system includes sequencer, instruments, effects and more.

Poison-202 is a professional Vintage Midi Synthesizer.

Groove Rider GR-16 is a professional step-sequenced groove box, inspired by professional hardware drum machines and rhythm boxes.

Combine 3 oscillators and a noise envelope to produce bright 80s-style synths, deep rich bass, punchy kicks and snares, a variety of screaming leads, and even breathy percussion.

The hybrid synthesis algorithm on which Addictive Pro is based provides you with efficient means for easy control of complex sounds far beyond usual sound synthesis methods.

SpringSound is a physical-modeling audio synthesizer that produces sounds by simulating interactions and vibrations of a set of activators and masses connected to springs.

Professional Virtual Analogue Synthesizer.

Moebius Lab is a multimorphic sound processor which contains a synth, a varispeed stereo sample player, effects and LFOs that can modulate each parameter.

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

Synclavier Go! is an authentic re-creation of the Synclavier® II Digital Synthesizer of 1980.

Borderlands Granular uses a technique called granular synthesis, which involves the superposition of tiny fragments of sound, or “grains," to create complex, evolving timbres and textures.

Pixound provides a deep musical experience that lets you instantly create music using any picture.

Shoom is an expressive XY pad synthesizer. Or, more precisely, three identical synthesizers in one app.

Xynthesizr is a streamlined yet capable 32-step matrix sequencer/monotimbral synthesizer with generative features and MIDI.

Waveshaping Synthesis is a type of distortion synthesis that can create dynamic spectra in a controlled way.

SquareSynth is a hybrid analog/8bit style synthesizer. It takes features from the NES console, and the Commodore 64 personal computer.

Just a Toy Synthesizer. Included: 2 Oscillators, LPF, Delay effector, Ribbon controller.

KQ MiniSynth is a polyphonic modular synthesizer.